Blocking a highway between the eastern provinces of Tunceli and Erzincan, the militants of the outlawed PKK kidnapped a Turkish sergeant after stopping his vehicle on Friday.
Despite the efforts of citizens at the scene, the militants took the officer away.
Upon receiving the information, security forces launched an operation in the region.
One civilian was also kidnapped by PKK terrorists, after he was stopped on a road in Catak district of southeastern province Van on Wednesday.
The PKK is listed as a terrorist organisation by Turkey, the US, EU and the UK, and has increased terror attacks in Turkey since July 11, when its umbrella organisation the KCK unilaterally ended a two-year-long ceasefire with the government, killing nearly 30 civilians and 118 security officers since then.
In the meantime, the militants of the youth wing of the PKK, opened fire on police officers who had came to cover the trenches that the militants had dug up on the streets of Sirnak on Thursday.
The militants used civilians as human shields while attacking the police, and also used improvised explosive devices to attack the security officers.
The special operations forces detonated the bombs, which were placed in and around the trenches with controlled explosions.